R480 AGERE | Alldatasheet

Document overview

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Technical content

Features

■ Multisourced footprint ■ Internal APD bias supply ■ Differential CML data output ■ APD and PIN versions ■ T ypical sensitivity: —APD, –32 dBm —PIN, –23 dBm ■ Operation at 1.3 µm or 1.55 µm ■ TTL link status flag ■ Wide operating case temperature range: —APD, 0 °C to +85 °C —PIN, –40 °C to +85 °C ■ Space-saving, self-contained, 24-pin DIP ■ Agere Systems Inc. Reliability and Qualification Program for built-in quality ■ SONET/SDH compatible for OC-48/STM-16 data rate

Applications

■ T elecommunications: — Inter- and intraoffice SONET/SDH — Subscriber loop — Metropolitan area networks ■ High-speed data communications

Description

The R480-Type 2.5 Gbits/s lightwave receiver is designed for use in SONET and synchronous digital hierarchy (SDH) telecommunications applications up to OC-48 and STM-16 data rates, and high-speed data communications applications. The receiver con- verts received optical signals in the range of 1.2 µm to 1.6 µm wavelength into differential CML data out- puts. The receiver consists of either an InGaAs APD or PIN photodetector (depending on model selected), a transimpedance amplifier, and a limiting amplifier that provides differential CML data output. A TTL compatible link status flag signal indicates when there is a loss of optical signal. The receiver is manufactured in a low-profile, pig- tailed, 24-pin plastic DIP package. It requires a sin- gle, 5.0 V power supply. The APD version has the added benefit of containing the high-voltage supply internal to the receiver. This internal supply also pro- vides the necessary temperature compensation for the APD. An analog photodetector monitor provides a voltage proportional to the optical input level voltage (OIL V).

Table 1. Pin Information

  • Pins labeled NIC have no internal connection.

nally. The user should not make any connections to these pins. availability and ordering information. a result of electrostatic discharge (ESD). ness in mind, care should be used during handling. The optical connector should be kept free from dust. blies Technical Note (TN95-010LWP). excessive axial pulling or lateral tugging.

1 NIC* 24 NUC †

2 NUC † 23 OILV §

4 Ground 21 NUC †

5 NIC* 20 Ground

6 NIC* 19 Ground

7 Ground 18 NIC*

9 Ground 16 Ground

10 DA TA 15 Ground

11 DA TA

14 Ground

12 Ground 13 NIC*

periods can adversely affect device reliability. Table 2. Optical Characteristics At 1.3 µm wavelength and 1 x 10–10 BER with 223 – 1 NRZ pseudorandom data.

  • Over operating temperature range and at end of life.

†Typical values at room temperature and beginning of life. ‡ OIL V measured with respect to ground.

Table 3. Electrical Characteristics

  • T ypical values measured at room temperature and beginning of life.

†Measured with a 50 Ω load to ground. Outputs must be ac-coupled (see Figure 2).

T echnologies ™ GR-468-CORE. Table 4. R480 Qualification Information

500 G, 1 ms

20 G, 20 Hz—2000 Hz

100 Cycles for Pass/Fail

■ The data outputs are designed to drive 50 Ω loads. vent noise from feeding back into the receiver. both data outputs must be terminated in equivalent loads, even if one of the outputs is not being used. the appropriate power supply leads and should provide a low-inductance path to the ground plane. Figure 1. Biasing and Interfacing to the R480-Type 2.5 Gbits/s Receiver

7Agere Systems Inc. Data Sheet, Rev. 1 R480-Type Lightwave Receiver with CML Data Output September 2001 for up to 2.488 Gbits/s Applications Outline Diagrams Dimensions are in inches and (millimeters). 1-999(F) 1.100 (27.94) 0.495 (12.57) 0.018 (0.48) 0.100 (2.54) 0.710 (18.03) 2.305 (58.55) 0.950 (24.13) 0.122 (3.10) 0.014 (0.36) 13 24 12 1 0.144 (3.36) BOTTOM VIEW 0.350 (8.89) 1.000 (25.40) 1.400 (35.56)

R480-Type Lightwave Receiver with CML Data Output Data Sheet, Rev. 1 for up to 2.488 Gbits/s Applications September 2001 Agere Systems Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application. Copyright © 2001 Agere Systems Inc. All Rights Reserved September 2001 DS01-011OPTO-1 (Replaces DS01-011OPTO) For additional information, contact your Agere Systems Account Manager or the following: INTERNET: http://www.agere.com E-MAIL: docmaster@agere.com N. AMERICA: Agere Systems Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, P A 18109-3286 1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-712-4106) ASIA: Agere Systems Hong Kong Ltd., Suites 3201 & 3210-12, 32/F , T ower 2, The Gateway, Harbour City, Kowloon Tel. (852) 3129-2000, FAX (852) 3129-2020 CHINA: (86) 21-5047-1212 (Shanghai), (86) 10-6522-5566 (Beijing), (86) 755-695-7224 (Shenzhen) JAPAN: (81) 3-5421-1600 (T okyo), KOREA: (82) 2-767-1850 (Seoul), SINGAPORE: (65) 778-8833, T AIWAN: (886) 2-2725-5858 (Taipei) EUROPE: Tel. (44) 7000 624624, FAX (44) 1344 488 045

Ordering Information

Table 5. Ordering Information for the R480-Type Receiver Table 6. Related Product Information

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